William Moore worked as a surveyor for the Los Angeles City and County as early as the 1850s. In the late 1860s and 1870s, Moore started working for the Los Angeles Canal and Reservoir Company to establish a system of canals to bring water from the...

In 1886, the Stone Quarry Hills (also known as the Rock Quarry Hills) was officially dedicated as Elysian Park, which became a popular recreation area, offering ample picnic grounds, an arboretum, zoological garden, and aviary. In 1962, the Dodger...

E. T. (Edward Thomas) Wright was county surveyor three times in Los Angeles County, his first term beginning in 1884 and his last ending in 1898. He also served as county surveyor for San Bernadino County. Partnering with W. B. Nicholson, he formed...

Henry Hancock was a prominent Los Angeles lawyer and surveyor. He worked as Los Angeles City Surveyor and United States Deputy Surveyor in the 1850s. Hancock surveyed most of the large ranches between Monterey and San Diego in California.